/Engine/Plugins/Developer/Concert/ConcertApp/MultiUserClient/Source/MultiUserClient/Public/IMultiUserClientModule.h
Launches a server (if none are running) on the local machine. On success, the server is launched and itsFProcHandleis returned. On failure, an asynchronous notification (banner) is displayed to the user.
[TOptional](API\Runtime\Core\IO\TOptional)< [FProcHandle](API\Runtime\Core\Unix\FProcHandle) > LaunchConcertServer ( [TOptional](API\Runtime\Core\IO\TOptional)< [FServerLaunchOverrides](API\Plugins\MultiUserClient\FServerLaunchOverrides) > LaunchOverrides )